moby--moby/runconfig/exec.go

50 lines
1.5 KiB
Go

package runconfig
import (
"github.com/docker/docker/api/types"
flag "github.com/docker/docker/pkg/mflag"
)
// ParseExec parses the specified args for the specified command and generates
// an ExecConfig from it.
// If the minimal number of specified args is not right or if specified args are
// not valid, it will return an error.
func ParseExec(cmd *flag.FlagSet, args []string) (*types.ExecConfig, error) {
var (
flStdin = cmd.Bool([]string{"i", "-interactive"}, false, "Keep STDIN open even if not attached")
flTty = cmd.Bool([]string{"t", "-tty"}, false, "Allocate a pseudo-TTY")
flDetach = cmd.Bool([]string{"d", "-detach"}, false, "Detached mode: run command in the background")
flUser = cmd.String([]string{"u", "-user"}, "", "Username or UID (format: <name|uid>[:<group|gid>])")
flPrivileged = cmd.Bool([]string{"-privileged"}, false, "Give extended privileges to the command")
execCmd []string
container string
)
cmd.Require(flag.Min, 2)
if err := cmd.ParseFlags(args, true); err != nil {
return nil, err
}
container = cmd.Arg(0)
parsedArgs := cmd.Args()
execCmd = parsedArgs[1:]
execConfig := &types.ExecConfig{
User: *flUser,
Privileged: *flPrivileged,
Tty: *flTty,
Cmd: execCmd,
Container: container,
Detach: *flDetach,
}
// If -d is not set, attach to everything by default
if !*flDetach {
execConfig.AttachStdout = true
execConfig.AttachStderr = true
if *flStdin {
execConfig.AttachStdin = true
}
}
return execConfig, nil
}